Tech — My tech notes

This TiddlyWiki contains the following tiddlers:

<<唐多令>> 刘过
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$:/.giffmex/.Stylesheet4Stroll
$:/.giffmex/sidebar/tabs/strollcontrols
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$:/config/AnimationDuration
$:/config/AutoSave
$:/config/codemirror/keyMap
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$:/config/DefaultSidebarTab
$:/config/DownloadSaver/AutoSave
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$:/config/PageControlButtons/Visibility/$:/core/ui/Buttons/unfold-all
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$:/config/RelinkOnRename
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$:/config/shortcuts/save-tiddler
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$:/config/TiddlyWiki-CPL/GitHub
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$:/DefaultTiddlers
$:/isEncrypted
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104. Maximum Depth of Binary Tree
155. Min Stack
408 Request Timeout
ACID (atomicity, consistency, isolation, durability)
add text at the end of each line in Vim
Advanced Topics for Building an Experimentation Platform
Algebraic data type
Algorithm
Algorithm And Data Structure
Allocable ELF section
allow experiments to have multiple iterations
alpine
Amazon Cloud
Amazon Cloud concept
Amazon Elastic Kubernetes Service (EKS)
Anatomy of a network packet
Application layer
Arch Linux
Arch 更新时刚好上游的网卡驱动包在同步
ARP(Address Resolution Protocol)
Array
async-signal-safe
auto adaptive experiments
awk
awk NF
AWS auth
AWS auto login and export
AWS EC2
AWS EC2 list all instance type and count
AWS EKS experience
AWS EKS set loadbalancer from 0.0.0.0 to internal CIDR
AWS hop setting on EC2 container
AWS install cli on alphine
AWS perm resources for the one who haven't
AWS perm set
AWS S3
AWS S3 check the PUT/GET QPS/metrics
AWS S3 list one day's files
AWS tips
AWS VPC CNI
AWS VPC CNI binary
AWS VPC CNI settings
aws-node
Backend
Backtracking
Bandwidth estimates
Base32/Base64
Bash
Bash best practice
Bash Debugging
Bash double dash(--)
Bash exec
Bash exec to Sanitize std{in,out,err}
BASH Frequently Asked Questions
Bash Here Documents
Bash Pitfalls
Bash Process Substitution
Bash Redirect Output
bash script to git sparse-checkout add require packages
Bash sperate strings and loop execute
Bash Syntaxs
Bash use here doc to avoid Escape
Be careful with ioutil.ReadAll in Golang
Behavior Questions & Culture Fit
BFS
BFS questions
BFS solution 解题框架
BGP(Border Gateway Protocol)
Binary Tree
Binary Tree Traverse
blockdev --setra SETTING A SANE READAHEAD
boldFontCss
Books From Zhihu
Books Notes
BST Succuessor Search
Btrfs
Btrfs best practice
Btrfs Layout
Btrfs Snapshots
Btrfs Subvolumes
BufNewFile
Build automation
Business
Caclico BGP route reflector (BIRD)
calicao subnet not match the CIDR of a configured Calico IP Pool
Calico
Calico BGP client (BIRD)
Calico commands
Calico Debug
Calico Felix
Calico for Eru
calico IP address management (IPAM)
Calico IP pool
Calico networking with encapsulation or no encapsulation
Calico Overlay networking
Calico Summary
calicoctl configure it's store
Calico系统配置
Calling a Child Module
CAP theorem
Capacity estimation and constraints
Capturing group
CFS Bandwidth Control
CFS Bandwidth Control Statistics
CFS CPU Quota Period
cgroup
cgroup Cpusets
cgroup hierarchy
cgroup subsystem(resource controllers)
cgroups
cgroups + OOM
cgroups Terminology
Chaos Engineering: the history, principles, and practice
Chinese literature
Chinese Song lyric
Choosing properties for property-based testing
ci
CIDR
classiful networks
close wait
Cloud
Cloud Products
Cloud services
comby
comby match where
comby upgrade golang module
command line
Compiler
Complie
Computer Architecture
Computer multitasking
Computer network types by spatial scope
Computing
Concept
Concurrency control
concurrent write need to ensure share var operation are atomic
Configuration file format
Conflict Avoidence
Connection tracking (“conntrack”)
consistent hashing
container graceful shutdown
control operator &
controlling terminal
Cooperative multitasking
coredump
core返回ip能连但running为false
Coroutine
Coroutine comparison with threads
Coroutine 实现
Coroutine 起源
CoW
cpu utilization based on average CPU usage over the time period
CPU(CentralProcessingUnit)
Crawl Maturity Models
Create some network issues to test
Cryptography
CS Statistics
Cyber security
DaemonSet
data distribute(数据分布)
Data Structure
Database
Database design
Database platform
Database selection
database transactions
DB Concurrency control
DDoS
Debug
DebugTools
Decision Making，第五类DP，取舍决定（当前元素取或是不取）
DefaultEnableV2
degisnURLShortening.png
Design a Twitter
Design dropbox
Design Facebook Messenger
Design FB News Feed
Design Instagram
Design Rate limiter
Design Uber Backend
Design URL Shortening
Design Web Crawler
Design Youtube
designFBMessenger.png
Designing partitions
designInstagram.png
designNewsFeed.png
designRateLimiter.png
DesignTwitterPic.png
designWebCrawler.png
designYoutube.png
determining the number of CPUs(cpu数量)
deterministic finite-state machines(DFA)
Dev Align With QA when reconstruct
Development
DevelopmentTools
DFS
Diffie–Hellman key exchange DH 算法交换密钥
difftastic
Distinct Ways，第二类DP问题，达到目标的不同方式总数
Distribute System
Distribute System Resources
Distribute System Theorem
Distributed systems for fun and profit
Distributed transaction
Distributed Transactions and Consensus
Dlv
Dlv handle signal(not forward)
Do The Things Right
Docker
docker btrfs storage driver
docker cluster-store
Docker container benchmark
Docker container support coredump
Docker copy's interface parm is tar file
Docker daemon logs
Docker Issues
docker logs container stop on long ago, program normal and works
Docker network modes
docker start failed caused by
Docker Storage Driver(graph driver)
Docker volume lost suddenly
Docker 无法同步更新network driver
Does Erlang need Type System?
don't use objdump. Use readelf instead.
DP on Strings，第四类DP，字符串上面的DP
DP questions category
dup2
Dynamic analysis
Dynamic linking
Dynamic Programing(DP)
DynamoDB
dynsym
edit a website easily
Editor
ELF Section
ELF(Executable and Linking Format)
Elixir
Elixir best practice
Elixir improvement
Elixir JIT(just-in-time compiler)
Elixir Map
Elixir map syntax
Elixir syntax
Elixir use string in http request handling
Encoding
Encryption
ENI (Elastic Network Interface)
Environment variables
Erlang性能
Eru
Eru Agent
Eru agent 流程
Eru CopyFileToContainer 偶尔会失败
Eru Core TLS
Eru Cpu-bind
Eru create fake container for locking ip
Eru Create/Copy file
Eru Fixed IP proxy plan
Eru 发现host模型的ip为127.0.0.1
Eru 容器命名规则
Eru 超售(Oversold)
Eru分配算法
Eru怎么处理容器的log
Estimation skills in system design(快速估算技巧)
etcd
etcd common commands
etcd common scripts
etcd compaction, rollback回滚机制
etcd concurrency mutex is owner
etcd distributed lock
etcd performance
etcd put process
etcd recover all old data
etcd revision
etcd 无法watch
ethernet tools
Everything in Go is passed by value
Everything is a file
exec
Execute bash pipeline using ssh
Exit Codes With Special Meanings
Exp Infrastructure and Tools
Exp Parameter
Exp Randomization Unit
Exp Variant
Experiences purchase produce more happiness than material purchase
Experiment Definition, Set-up, and Management
Experiment Deployment
Experiment Platform
Experiment Platform References
Experimentation Analytics
Experimentation Maturity Models
Experimentation Process
ext2 filesystem
extended Berkeley Packet Filter (eBPF or BPF)
Failed to hibernate system via logind: Not enough swap space for hibernation
file deleted, but used by process, how to free space
file descriptor
File&IO
Finance
Finance Info List
Finite state machines(FSM) / finite-state automaton (FSA)
FlatBuffers
Fly Maturity Models
FontAwesome
foreground process
fork
formal language
Formal language
Formal verification
Functional partitioning
Gamma
garbage collection
Gateway
gbk，Unicode，UTF-8
GDB
GDB -g Produce debugging information
GDB Finding functions
GDB Finding variables
generate coredump
getaddrinfo
getnameinfo
gettimeofday & clock_gettime is slower on instance
Getting a Different Number
Git
Git sparse-checkout
GitHub
Go Modules
Go replace
Go replace seems can not replace nested package
go: error loading module requirements
go.sum
goalng CI build 二进制/tmp/zero-redis: No such file or directory
Golang
Golang benchmark
golang best practice
golang build can repalce makefile
Golang Channel
Golang Channel Types
golang ci runner
golang cli boolean flags set with '='
Golang client pressure test
golang context
Golang context pitfall
golang context todo vs background
golang copy dir and make it as new module
golang ctx linter
Golang ctx pitfall by linter edit
golang debug
Golang defer
golang DNS, cgo vs netgo
Golang Enable PProf
Golang Example
Golang exec command
Golang exec ommand hangs when read all(pipe was full)
Golang Functional Options
Golang generating mock files
Golang goroutine
Golang hide error judgement in struct function
Golang JSON
Golang Libraries
golang linters
golang module require valid semantic version
golang monad
Golang net
Golang net after receiver RST
golang not recognize cgroup limit
Golang package issues
Golang Parameters
Golang patterns
Golang pitfalls
Golang Plugin
Golang plugin ref
Golang Property Based Testing
Golang Property Based Testing Example
Golang Runtime
Golang Select
Golang syntax
Golang testing
golang tools
Golang unit test
GolangLabelScopes
Google docs
Google Products
Goroutine scheduling (GMP)
graceful restart
graceful shutdown
Grafana
Graph Algorithm
Habits to protect the brain
Handling Write Conflicts
Happiness
Health
Heap (data structure) 堆
Hedonic adaptation(享乐适应)
History
Horizontal partitioning (often called sharding)
Horizontal, vertical, and functional data partitioning
host 模型
How to tell what the CPUs are really doing
HTML
HTML document object
HTTP Disadvantage
HTTP experience
HTTP Status codes
HTTP2
HTTP2 Frame
HTTP2 implementation
HTTP2 Server Push
HTTP2 Stream
HTTP2 Stream 优先级
HTTP2 Stream流量控制
HTTP2 头部压缩（HPACK）
http2 的 rfc 没有规定 data frame 应该拆分与否
HttpServer
Hyper-threading(超线程)
Hypertext Transfer Protocol (HTTP)
ICMP(Internet Control Message Protocol)
idempotence
Idempotence
Impact of Television Viewing on Brain Structures
Indie Hackers
Indie Hackers Ideas
InfiniBand
infrastructure
infrastructure as code
infrastructure as code tool
infrastructure services
init process
InnoDB
instructions per cycle(IPC)
Internet Protocol (IP)
Internet protocol suite
Internet Protocol version 4 (IPv4)
Internet Protocol version 6 (IPv6)
interprocess communication (IPC)
Interrupt
Interview
Interview Problems
ioctl
IP MTU(Maximum transmission unit)
iproute2
iptables
irqbalance
is all program exit cause by signal?
JavaScript
JobControl
Joe Armstrong
Journald
Journald no further logs, status correct, dmesg report error
JSON
k8s controllers
k8s liveness probes
K8S operations
K8S Pod
K8S probes
k8s readiness probes
K8S restart pods
K8S service
kernel virtual network devices
Key Generation Services(KGS)
Key–value database
keyboard-navigation.css
kill
ksoftirqd
kube-dns
kube-system namespace
Kubernates Best Practice
Kubernetes pods
Kubernetes throtling
Kubernetes Weak Points
Kubernetes(K8S)
L2TP(Layer 2 Tunneling Protocol)
Lamber papers
Latency Comparison Numbers
Latency generated by expires(over 25% keys expire)
Layer 1: Physical Layer
Layer 2: Data Link Layer
Layer 3: Network layer
Layer 4: Transport layer
Layer 5: Session layer
LD_PRELOAD
LeetCode
Liberal arts
Libnetwork plugin for Calico
Linker (computing)
Linux
Linux Bootup
Linux Bootup not enough entropy
Linux Clock
Linux Clock Source
Linux Clock Source issue
Linux Command to consume cpu and mem
Linux CPU Performance Tools
Linux distribution
Linux epoll(eventpoll)
Linux File System
Linux IO multiplexing
Linux IO Tools
Linux IO top
Linux Kernel
linux kernel modules
Linux Kernel recv blocking and recv
Linux loop device
Linux Memory Management
Linux Memory Viewer
Linux Multi Process
Linux Network
Linux Network Tools
Linux Performance Analysics
Linux Performance Tools
Linux pidstat
Linux Pipe
Linux poll
linux process clone api
Linux record process network send/receive
Linux select
Linux Software
Linux TCP
Linux TCP tools
Linux the dynamic linker(ld.so/ld-linux.so)
Linux Trace Tools
linux uptime
Linux Virtula Memory Tool
LinuxTips
Listen socket listen backlog
Literature
local area network (LAN)
Location Service
logical (row-based) log replication 逻辑日志复制
logical core/processor(逻辑核)
Loopback Interface
LRUCache
lsof
ltrace - A library call tracer
mac docker compose with prometheus and cadvisor
Mac OS
Mac sudo use fingerprint on tmux
Make
Management
many programs rely on Linux the dynamic linker(ld.so/ld-linux.so)
Math
Mathematical logic
Memory estimates
Merging Intervals，第三类DP，区间合并
Merkle tree
Metabase
Metabase Paramater(Argument)
Metric
Minimum (Maximum) Path to Reach a Target
mmap
Mocks and test fragility
Model checking
Model of computation
monad
MonitorTool
mremap issue on arm
Multi-Leader Replication
Multiversion concurrency control
musl
My SSH Default Config
MySQL
MySQL JSON
MySQL pitfalls
MySQL Select for empty JSON array in MySQL
MySQL select JSON filed
MySQL syntax
MySQL tips
MySQL use `is NULL` instead of `=null`
mysql use pager(less, bat)
Neighbour table overflow
NetBIOS
netstat
Network
Network best practice
Network Interfaces
Network socket
NetworkVirtualization
Neuroscience
Nginx
nginx sites-available/enable config
Ninja build tool
Non-allocable ELF sections
non-deterministic finite-state machines(NFA)
Normal books
NoSQL databases
not defining a new variable for each iteration
Note
Nutrition
Objdump
Ologn
Online Controlled Experiments Terminology
OOM logs, params
OpenShift
OpenStack
OpenVPN
Optimistic Concurrency Control 乐观并发控制(乐观锁)
OS
OS-level virtualization
OSI model
OSI model questions
Out Of Memory Management
Overall Evaluation Criterion (OEC)
Overlapping Experiments
Overlay Networking (SDN Overlay)
PaaS
Page cache
Papers
Papers From Zhihu
Passive Fingerprinting of HTTP/2 Clients
Password Hashing
Password Hashing Competition
Path MTU Discovery
PBT test 文章
PCB
PCRE
Percentile 百分位分数
perf
Performance Monitoring Counters (PMCs)
Perhaps %CPU should be renamed to %CYC, short for cycles
Permutations
Permute Unique
Pessimistic Concurrency Control 悲观并发控制 (悲观锁)
physical core/processor(物理核)
Pitfalls
PLT useful tools
pmap - report memory map of a process
Poems
Positive lookbehind
PostgreSQL(psql)
PPT
Preemption multitasking
Principles
proc /proc/<pid>/oom_adj
proc /proc/<pid>/status
Process
process context switch
Process State
Process Tools
ProcessGroups
ProcessID
ProcessSessions
procfs
product type
Production code, system parameters and values
Programming language
Programming language theory(PLT)
Project Management
Prometheus
PrometheusIssues
PromQL
PropEr
Property-based Testing
Property-based Testing Shrinking
Protocol Buffers
Providers block
Proximity（接近）
psql common operations
psql list dbs
ptrace
Python
Python global vs nonlocal
Python3
Python3 global
Python3 Identity Operators
Python3 Keywords
Python3 nonlocal
Python3 Operators
Python3 Simple statements
QuickCheck
Quote
RE2
Read golang benchmark results
read/write
Reasons to use NoSQL database
Reasons to use SQL database
recvq
Redis
Redis asyn operation(delete, expire)
Redis Cluster data sharding
Redis Cluster is not able to guarantee strong consistency.
Redis Cluster master-slave model
Redis Config
Redis Data types
Redis Execute Command
Redis Hashes
Redis Implementation
Redis latency problems troubleshooting
Redis Lists
Redis Reshard
Redis Sets
Redis Strings
Redis UNLINK Key(similar to DEL)
RedisCluster create show `not configured as a cluster no`
RedisStream
Reentrancy
reentrant
Reentrant
regex
Regex find empty lines
Regular expression(regex)
Regular properties
regular-expression engines
Relational database
RenameTags
ReplicaSet
replicating algorithms
Replication Logs
Replication(复制)
ReplicationController
ReplicationController parts
ReplicationControllers
Resource Block
Resources
Resume
Resumes & Cover Letters for PhD Students
Routing with Linux
Run Maturity Models
Runtime Verification (RV)
S3 drawbacks
S3 vs DynamoDB
Save Google Docs with ‘Export Options Disabled’
Scaling Experimentation: Digging into Variant Assignment
Secure Shell (SSH)
security/encryption/cryptographic protocol
sed
Segment Tree
select
sendq
Serialization
Serialization formats
Service Level ensurance
Service mesh
Set MySQL query JSON result not cut off
shared-nothing architecture(无共享架构)
Shell
SIGBUS
SIGHUP
SIGHUP for reloading configuration
SIGILL
SIGINT
SIGKILL
Signal
Signal cases
Signal experience
SIGPIPE
SIGQUIT
SIGSEGV
SIGSTOP
SIGTERM
SIGTRAP
SIGTSTP
Silly Window Syndrome(糊涂窗口综合症)
Single Lead Replication
Single-Layer Exp Method
SLA: Service Level Agreements
SLO: Service Level Objectives
SO_REUSEADDR
Socket setsockopt
Socket: Close vs Shutdown
SOCKS
some interface and/or tools to easily manage many experiments and their multiple iterations
Sort algorithm
Sort classical problems
Speech
Speeding up regexp matching with ragel
SQL VS. NoSQL - Which one to use?
SQL VS. NoSQL useage cases
Sroll的双向链接
SSH config Host
SSH login as root using RSA
Stack data structure
statement based replication(基于语句的复制）
Static analysis
Static code analysis
Step 1: Constraints and use cases
Step 2: Abstract design
Step 3: Understanding bottlenecks
Step 4: Scaling your abstract design
Storage estimates
Strace
strace process explained
stroll
Structured Distraction
sum type
Symbol table
Symbol table is required for debugging
symlink(软链接)
symtab
SYN Flood 攻击
synchronously replicating
System APIs
System Design
System Design Interview
System Design Interview Examples
System Design Interview Steps
System Design Resources
System Design Tools
SystemCalls
systemd
systemd issues
systemd-udevd.service Network InterfaceNames
SystemProgramming
TableOfContents
TAP(network TAP)
Targeted Properties
TCP close a connection
TCP Congestion Handling 拥塞处理
TCP Fast Retransmit(快速重传)
TCP flow control
TCP MSS(Maximum segment size)
TCP Normal Close(four times close)
TCP Selective Acknowledgment (SACK)
TCP server close, send FIN, then receive client packet
TCP Simultaneous Close
TCP Sliding Window(滑动窗口)
TCP Three-way Handshake
TCP Three-way Handshake is necessary
TCP(Transmission Control Protocol)
tcpdump
tcpdump examples
tcpdump experience
tcpdump incorrect cksum
tcpdump use pcap-filter
Tech Books
TemplateTidderCSS
TemplateTiddler
TemplateTiddlerBackup
Terraform
terraform remote state backend "atlas"
Terraform Block
Terraform Data Sources
Terraform Modules
Terraform Syntax
Test doubles
Test Mocks
Test Stubs
testable building blocks
Testing
thanos
The data passes through the pipe sequentially
The Linux Storage Stack
The terraform_remote_state Data Source
Theorem proving
Thread
thread safe
Three-Phase Commit(3PC)
Thundering herd problem
Tiddly Wiki Tips
TiddlyDesktop
TiddlyWiki
Tiddlywiki delete all tiddlers
TiddlyWiki 优缺点
TiddlyWiki 使用心得
TiddlyWiki: Compare with Obsidian
TiddlywikiResources
Tiddlywiki国人开发版本——太微
Tiddlywiki将打开的 tiddlers 以 tab 形式显示在 tiddler 上方
Tiddlywiki插件
TiddlyWiki配套工具
tidgraph 显示mindmap
time complexity
time series database
time wait
Tips
tmux
tmux save current history to file
TOC
TOML
tomorrow night eighty
Tools
Traffic estimates
transactions statements
Tree
Troubleshooting
Trustworthy-Online-Controlled-Experiments
TUN(network TUNnel)
Two-phase commit protocol(2pc) 两阶段提交
Type Theory
ubuntu docker coredump
UDP(User Datagram Protocol)
ulimit
Unbuffered IO
uninterruptible process
Unix domain socket
Unix domain socket passing fd
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URL encode
Use Cases for Multi-Leader Replication
use ip command to get outside netcard
use lint tools on the commits you made
Use proc's fd to recover files
use sed to replace multiple paths
Use worker pool instead of leverage routines
UsefulWebsites
userspace Out-Of-Memory (OOM)
Variant assignment
vdso
version control system
Vertical partitioning
Vim
vim Open FZF Result In A Split In Vim
Vim surround every word with "
Vim template open file
Virtual memory settings in Linux---Overcommit
vmstat
VPN(Virtual private network)
wait && waitpid
Walk Maturity Models
WebAssembly
Welcome to Stroll
What determines happiness?
what’s your problem? why are you doing this?
When to use Multi Process
When to use transaction
Why have two symbol tables if .symtab already contains everything that's in .dynsym?
Why Linux Pipe need to close read/write
Why we need IP addr since we have mac addr?
WhyBashCanRunProgram
wide area network (WAN)
WorkExperience
write
write-ahead log(WAL) shipping（传输预写式日志）
xargs
YAML
You are in 'detached HEAD' state
Zero
ZombieProcess
三色标记 Tri-color marking
三色标记并发 Tri-color marking concurrent
下载使用我的Tiddlywiki模板
中国居民膳食营养素参考摄入量
中国成年居民营养素摄入状况的评价
中断
中秋
事务一致性（Consistency）
事务隔离性（Isolation）
事务隔离级别
你的灯亮着吗
使用疑问句，不要用陈述句
内核态
升级 HTTP2
原子性（Atomicity）
可供选择的Tiddlywiki模板
可重入vs幂等性
听雨
块组描述符表(GDT，Group Descriptor Table)
安装 TiddlyWiki
安装与维护Tiddlywiki
宋代卢祖皋的《江城子·画楼帘幕卷新晴》
实现读已提交
少年
平均负载(Load Average)
广告词过滤
引用计数（reference counting）
当程序变现很奇怪，不该变的地方变了
我为什么选择Tiddlywiki
我是如何上传tiddlywiki到GitHub的
我是怎么使用Tiddlywiki的
抓取bash自身的系统调用
抽象
拓扑排序（Topological Sorting）
持久性（Durability）
控制终端(controlling terminal)
林夕《传说》
标记-清扫（mark-sweep）
比较instances与etcd间是否有脏数据
江南
用户态
监控统计，能用Prometheus做的绝不造轮子
管道(Pipe)
美团ddd
节点复制（copying）
菩萨蛮·人人尽说江南好
营养成分表
虞美人·听雨
读已提交（Read Committed）
读未提交（Read uncommitted）
超级块(Super Block)
载酒
阻塞(block)